Deburring effect of special-shaped hole

Complex shape, irregular special-shaped hole parts, CNC machining CNC milling, CNC turning and EDM cutting line technology, through the CNC machine tool adaptation of G code manual programming, you can achieve precision mass production, but in the face of mechanical processing surface burr problem, will further affect the processing and use of products. How to solve it?

Special-shaped hole deburring effect diagram, before Polishing, special-shaped hole surface has small burr and dark color, after grinding with magnetic polishing machine, not only no burr and improve the brightness of parts.